Hi. This depends on your level of proficiency with PHP and JavaScript as well as the WordPress APIs.
If you are a developer, you can start by looking at the templates, and also the plugin’s developer documentation: https://github.com/dashed-slug/wallets/blob/master/docs/developer.md
I believe that the [[wallets_exchange_market_order]] shortcode is what you initially described.
If you have a plan on what you want to do, let me know about any technical questions and I will try to put you in the right direction.
with regards